Fixed flakiness of context_lost tests on GPU bots.

content/browser/frame_host/debug_urls.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_DEBUG_URLS_H_
 #define CONTENT_BROWSER_FRAME_HOST_DEBUG_URLS_H_
 
 #include "content/public/common/page_transition_types.h"
 
 class GURL;
 
 namespace content {
 
 // Checks if the given url is a url used for debugging purposes, and if so
 // handles it and returns true.
 bool HandleDebugURL(const GURL& url, PageTransition transition);
 
+// Checks if the given URL is a url used for debugging purposes.

[jam, 2014/05/09 22:47:46]

nit: expand this comment since it's a bit confusing at first glance why there's
this method and the one below. i.e. say something like this is a superset of
IsRendererDebugURL and debugging urls that are handled in the browser process

[Ken Russell (switch to Gerrit), 2014/05/09 23:43:05]

Done.

+bool IsDebugURL(const GURL& url);
+
 // Returns whether the given url is either a debugging url handled in the
 // renderer process, such as one that crashes or hangs the renderer, or a
 // javascript: URL that operates on the current page in the renderer.  Such URLs
 // do not represent actual navigations and can be loaded in any SiteInstance.
 bool IsRendererDebugURL(const GURL& url);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_DEBUG_URLS_H_